Nut-lock.



F. MOSER.

v I NUT LOCK.

APPLICATION FILED APR- 6' IBM.

1,235,717. Patented Aug. 7,1917.

IAN/EN TOR ATTORNEYS of the United States, and a resident of had to the accompanying drawings in which UNITED sTATEs PATENT OFFICE.

FRED MOSER, or AUBURN, NEW YORK, ssrGNon or ONE-HALF T0 CHARLES r. BRAIM,

. or AUBURN, NEW YORK.

NUT-LOCK.

Specification of Letters Patent.

Patented Aug. '7, 1917.

Application 11166. April 6, 1917. Serial No. 160,101.

To all whom it may concern:

Be it known that I, FRED MOSER, a citlzen Auburn, in the county of Cayuga and State of New York, have invented a certain new and useful Nut-Lock, of which the following is a specification.

' This invention has for its object the production of a nut lock which is particularly simple in construction, economical in manufacture and highly efficient and durable in use, and which readily unlocks upon turning of the nut by a wrench; and the invention consists in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is like characters designate corresponding parts in all the views.

Figure 1 is a vertical sectional view of my nut lock, the same being shown as in inoperative position .on a bolt or screw, the contiguous portion of the bolt or screw being shown in elevation and the nut and a support for the screw or bolt being shown in section. v

Fig. 2is a view similar to Fig. 1 showing the position of the nut look when in looking position.

Fig. 3 is an elevation looking to the left in Fig. 2, parts being omitted.

Fig. 4 is an elevation of the washer. Fig. 5 is an end view of one of the looking leaves.

Fig. 6 is a view similar to Fig. 4 of a modified form of this invention. 7

Fig. 7 is a detail view of the locking leaf shown in Fig. 6.

This nut lock comprises, generally, a base plate or washer, and locking leaves hinged to the base plate and having their free edges remote from their axes movable into engagement with the screw or bolt as the nut is being screwed on the bolt and compresses the locking leaves, so that they move on their hinges from an inclined position to a toward the same into locking position as shown in Fig. 2 from the position shown in Fig. 1. e

As here shown, the washer 1 is formed with transverse slots5 and each leaf 4 is formed with a tongue 6 extended through one slot and with laterally extending lugs 7 at the ends of the tongue which lugs lap the rear face of thebase plate and hold the leaves from detachment.

The leaves at their free ends project at 8 toward the center of the washer beyond the edge of the opening 2 in position to engage the threads of the screw. y These edges are'usually arc-shaped In washer is formed with oflset portions or margins 9 and the slots 5 are formed in the deflections betweenthese offset margins and the body of the washer, that is in the parts the form shown inFigs. 1 to 4 inclusive, the

connecting the offsets 9 and the body of thewasher, the slots having inclined or angular extensions 10 at their-opposite ends; and the lugs 7 at the ends of. the tongues 6 are formed inclined inorder to pass through the inclined extensions 10, so that when the parts,

, of the leaf 13 has been passed through the slot 14 in the washer, the end of the tongue is spread slightly as at 15 by striking the same witha hammer or in any other suitable manner.

The washers are provided with suitable ears 16 which are'folded over onto the nut in the usual manner after the nut has been turned to itsfinal position.

In operation, the washer or plate 1 with the leaves 4 attached thereto isplaced on the bolt and as the nut 17 is turned on the bolt the ends of the leaves 4 engage the sup- 7 port 18 toward which the nut is being turned, so that continued movement of the nut causes the leaves to flatten toward the washer from the position shown in Fig. 1 to that shown in Fig. 2 causing the free edges of the leaves to be cut into by the threads of the bolt. Y

.Owing to'the use of the slots, the washer 110' may stretch slightly While the leaves are flattening toward the plane of the washer.-

When the bolt is unscrewed the locking leaves readily release themselves from the bolt, and the nut lock can be again used' without readjustment except, of-course',"the' the leaves to the washer, the leaves extendfolding of the ears 16. WVhat I claim is:

1. A nut lock comprising a washer, and a leaf hinged to the washer at one side of' opening, substantially as and for the pur pose specified.

3. A nut lock comprising a washer and opposing leaves hinged to the washer on' opposite sides of the openingof the washer and movable fiatwise against the washer, I

, the leaves having their'opposing edges extending inwardly beyond the edge of the washer around said opening, substantially I as and for the purpose set forth.

4. A nut lock comprising a washer formed with a slot atone side'of its opening, and a leaf having a tongue extended through the slot wherebythe leaf is hinged to the washer, the leaf'b'eing movable flatwise toward the washer and extending toward the axis-"of the washer, substantially as and for th'e'pur- 7 '22 day ofMarch, 1917.

pose described. I v

5. A nut'lock comprising a washer formed with slots on opposite sides of its opening, foldlng leaves having tongwsextendmg respectively through said slots and hlnging ing from the slots toward the center of the washer and being movable fiatwlse toward the washer and having arc-shaped inner edges, substantially as and for the purpose specified.

6. A nut look comprising a washer having a'slot'at' one "sideof its'opening, a leaf having a tongue extending through thesslot and laterally "extending", lugs"at'ioppos-ite sides of the "tonguebnear the end thereof for preventing movement ofthe" tongueout of the slot, the leaf being foldable flatwise'toward the washer andhaving'itsfree edge extending toward thecenter'of the opemng of the washer beyond "the edgewof the washer around said opening, substantially-as and for the purpose described.

7 A nut-lock comprising a washer with an offset portion at one side of. its opening and alsowith a slot formed in-the deflection between the oifset portion and thebody of the washerythe slot having angular exten-. sions at 1tsends, a foldlngleaf having a tongueextended through the -mam portion of the slot and laterally extending lugs at :opposite sides-of *the end of-the tongue, the

leaf being foldable toward the hody plate and having its free edge extendingbeyond -the edge of. the openingof the washer, substantially as and for the purpose set forth.

"In testimony whereof, I have hereunto signed my name, at Auburn, in thec'ounty of- Cayuga, and State of Yew York, this FRED Mo s-E'n.

1 crimes of this patent inay be-bbtained"forfive cents each, by addressing-the Goininissioner of Patents.

' 'Wash-ington, D; G. 

